AP BIOLOGY

CELL RESPIRATION

OXIDATIVE PHOSPHORYLATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
A
Only species Y is aerobic.
B
Only species Y is anaerobic
C
Both species X and Y are aerobic.
D
Both species X and Y are anaerobic.
Explanation: 

Detailed explanation-1: -Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations? Only species Y is aerobic.

Detailed explanation-2: -The reactants of photosynthesis are sunlight, CO2, and water (H2O). The products of photosynthesis are glucose (C6H12O6) and oxygen (O2). The reactants of cellular respiration, which are the products of cellular respiration, are carbon dioxide (CO2), water (H2O), and ATP.

Detailed explanation-3: -Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.

Detailed explanation-4: -Plants use oxygen and give off carbon dioxide. This process is called respiration.

Detailed explanation-5: -Today, most organisms make ATP with oxygen. They follow glycolysis with the Krebs cycle and electron transport to make more ATP than by glycolysis alone. Cellular respiration that proceeds in the presence of oxygen is called aerobic respiration.

There is 1 question to complete.